Commit 7fd87b3f authored by Francesco VIRLINZI's avatar Francesco VIRLINZI Committed by Paul Mundt
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sh: intc: Added resume from hibernation support to the intc 



It's required for all modules loaded in the previous runtime
session because not initilized duing the kernel start-up.

Signed-off-by: default avatarFrancesco Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 0221c81b

drivers/sh/intc.c

+31 −4
Original line number Diff line number Diff line
@@ -44,6 +44,7 @@ struct intc_handle_int { 
struct intc_desc_int {

	struct list_head list;

	struct sys_device sysdev;

	pm_message_t state;

	unsigned long *reg;

#ifdef CONFIG_SMP

	unsigned long *smp;
@@ -786,18 +787,44 @@ static int intc_suspend(struct sys_device *dev, pm_message_t state) 
	/* get intc controller associated with this sysdev */

	d = container_of(dev, struct intc_desc_int, sysdev);



	switch (state.event) {

	case PM_EVENT_ON:

		if (d->state.event != PM_EVENT_FREEZE)

			break;

		for_each_irq_desc(irq, desc) {

			if (desc->chip != &d->chip)

				continue;

			if (desc->status & IRQ_DISABLED)

				intc_disable(irq);

			else

				intc_enable(irq);

		}

		break;

	case PM_EVENT_FREEZE:

		/* nothing has to be done */

		break;

	case PM_EVENT_SUSPEND:

		/* enable wakeup irqs belonging to this intc controller */

		for_each_irq_desc(irq, desc) {

			if ((desc->status & IRQ_WAKEUP) && (desc->chip == &d->chip))

				intc_enable(irq);

		}

		break;

	}

	d->state = state;



	return 0;

}



static int intc_resume(struct sys_device *dev)

{

	return intc_suspend(dev, PMSG_ON);

}



static struct sysdev_class intc_sysdev_class = {

	.name = "intc",

	.suspend = intc_suspend,

	.resume = intc_resume,

};



/* register this intc as sysdev to allow suspend/resume */